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5/21/2013 9:36:19 AM EDT
I have an A2 upper.  I am removing the front sight base from a 14.5 in barrel and using a full length 15in free float rail (would have been same height as a flattop) what type/height of sight on the rails will work with the rear A2 carry handle sight  
Thanks
5/21/2013 9:50:33 AM EDT
[#1]
https://danieldefense.com/components-parts/sights/rail-mounted-fixed-front-sight.html

Keep in mind that A2 sights are 1mm shorter in height than A4/M4 sights, so you might run out of adjustment with some loads. If this happens, you can shorten the height of the front sight post.
5/21/2013 12:01:13 PM EDT
[#2]
Thanks, knew there was a difference in height of the rear, just wasn't sure by how much
5/21/2013 1:01:50 PM EDT
[#3]
Quoted:
Thanks, knew there was a difference in height of the rear, just wasn't sure by how much


You're welcome. The look or your AR, with its A2 upper, free float handguard, and hg rail mounted front sight base will be distinctive.
5/21/2013 3:54:52 PM EDT
[#4]
i think the sight radius makes a difference also, as in carbine sight radius, you will have to crank the front sight post down(when using a F marked FSB and fixed carry handle), but rifle length doesnt make much of a difference...generally speaking i think..
5/21/2013 5:37:44 PM EDT
[#5]
Quoted:
i think the sight radius makes a difference also, as in carbine sight radius, you will have to crank the front sight post down(when using a F marked FSB and fixed carry handle), but rifle length doesnt make much of a difference...generally speaking i think..


More than likely, but I wanted to make the OP aware if he is using Herter's or some other low powdered .223 load.

I have a C7 upper with a Mid Length 'F' marked FSB and I have no issues with any 5.56 load, or most .223 loads, but with Herter's I run out of adjustment and the POI is still ~1/2" from POA at 50yds. I know, just don't use Herter's, but I live near a Cabela's.
5/26/2013 4:54:39 AM EDT
[#6]
What height is a magpul buis ? Is it like the A2 or a4 height?
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